Air quality test unit



FIG. 1 is a front elevational view of an air quality test unit.

FIG. 2 is a left side view of the air quality test unit.

FIG. 3 is a right side view of the air quality test unit.

FIG. 4 is a rear view of the air quality test unit.

FIG. 5 is a top view of the air quality test unit.

FIG. 6 is a bottom view of the air quality test unit; and,

FIG. 7 is a perspective view of the air quality test unit.

The broken lines forming no part of the article.

CLAIM I claim an ornamental design for air quality test unit, as shownand described.